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RDF Surveyor

RDF Surveyor is an easy-to-use exploration tool of semantic datasets. It can be plugged in any CORS-enabled SPARQL 1.1 endpoint without requiring any installation.

These are some of the features of RDF Surveyor:

• Intuitive user interface that completely hides the RDF/SPARQL syntax

• It gives an overview of the repository contents, supports class navigation and individual visualization

• No installation required for exploring any RDF dataset

• Works with large datasets such as DBpedia

• Prepared to work with multilingual datasets

• The UI adapts to mobile devices

• RESTful design

Please cite RDF Surveyor as:

G. Vega-Gorgojo, L. Slaughter, B.M. von-Zernichow, N. Nikolov, D. Roman. Linked Data Exploration with RDF Surveyor. IEEE Access. 7(1):172199-172213, December 2019.

Usage

RDF Surveyor is a web application developed in Javascript. You can easily deploy it in your web server or just try RDF Surveyor on http://tools.sirius-labs.no/rdfsurveyor

To begin the exploration of a repository, you only need to copy the URI of the target SPARQL endpoint (and optionally the URI of the named graph). You can also import the URIs of some well-known repositories such as DBpedia with the "Import configuration" button.

Help us to improve

RDF Surveyor is available under an Apache 2 license. Please send us an email to guiveg@ifi.uio.no if you use or plan to use RDF Surveyor in a project. Drop us also a message if you have comments or suggestions for improvement.

Screenshots

Some screenshots of RDF Surveyor:

Configuration

You can edit the parameters of the configuration file at etc/data/config.js:

• pagesize: number of elements per page (default 10)

• hidemax: maximum number of elements to show in a list before including a show more button (default 8)

• hidebegin: element index to begin hiding (default 5)

• repos: preloaded configuration of repositories. Each element should have a name, an endpoint URI, and optionally a named graph URI

• geoenabled: if true, RDF Surveyor will try to find geographic coordinates for individuals and show a map widget provided by Leaflet.

• geooptions: the map widget provided by Leaflet requires your own accessToken. The rest of parameters here should not be changed

• gaenabled: if true, RDF Surveyor will log events (requested resource, latency, and number of SPARQL queries) through Google Analytics

• gaproperty: you have to provide your own property in order to log Google Analytics events